Home Journals Articles Updates About
CN
image
收藏切换
Mechanical Properties and Microscopic Analysis of Alkali-Activated Backfill Material with Gold Mine Tailings Powder
收藏切换
PDF
Zhengdong LUO1, Bo JIANG1, Benben ZHANG1, Daiqiang DENG1, Xiang LI2
Mining and Metallurgical Engineering | 2023, 43(4) : 21 - 25
Less
收藏切换
Mining and Metallurgical Engineering | 2023, 43(4): 21-25
• MININP •
Mechanical Properties and Microscopic Analysis of Alkali-Activated Backfill Material with Gold Mine Tailings Powder
Full
Zhengdong LUO1, Bo JIANG1, Benben ZHANG1, Daiqiang DENG1, Xiang LI2
Affiliations
  • 1.School of Civil Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
  • 2.School of Resources and Safety Engineering, Central South University, Changsha 410083, Hunan, China
Published: 2023-08-01 doi: 10.3969/j.issn.0253-6099.2023.04.005
Outline
收藏切换

With gold tailings as aggregate and ground gold mine tailings (referred to as gold mine tailings powder) as precursor materials, a kind of backfill material was prepared by alkali activation with sodium hydroxide together with sodium silicate as an activating agent. The effects of several factors, including particle size of gold mine tailings powder, modulus and addition of activating agent, on the mechanical properties of backfill mass were studied. The test results show that when gold mine tailings is ground for 60 min (size d50 of 5.939 μm), modulus and addition of sodium silicate in activating agent are 1.2 and 60% respectively, the prepared backfill mass can have a 28 d compressive strength of 854.2 kPa, completely up to the requirement for backfill mass stipulated in the GB/T 39489—2020 "Technical Specification for Paste Filling with Total Tailings". Due to alkali activation, gold mine tailings powder is subjected to a hydration reaction, yielding a large amount of aluminosilicate gel, which forms a dense and stable structure, resulting in the backfill mass with good mechanical properties.

gold tailings  /  alkali activation  /  backfill material  /  mechanical properties  /  microscopic analysis
Zhengdong LUO, Bo JIANG, Benben ZHANG, Daiqiang DENG, Xiang LI. Mechanical Properties and Microscopic Analysis of Alkali-Activated Backfill Material with Gold Mine Tailings Powder[J]. Mining and Metallurgical Engineering, 2023 , 43 (4) : 21 -25 . DOI: 10.3969/j.issn.0253-6099.2023.04.005
Appendix
Less
Year 2023 volume 43 Issue 4
PDF
38
8
Cite this Article
BibTeX
Article Info
doi: 10.3969/j.issn.0253-6099.2023.04.005
  • Receive Date：2023-02-06
  • Online Date：2026-03-05
  • Published：2023-08-01
Article Data
Affiliations
History
  • Received：2023-02-06
Funding
Affiliations
    1.School of Civil Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
    2.School of Resources and Safety Engineering, Central South University, Changsha 410083, Hunan, China
References
Share
https://castjournals.cast.org.cn/joweb/kygczz/EN/10.3969/j.issn.0253-6099.2023.04.005
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House